One carrier per medium
Name what carries the current in a metal, electrons, and in an electrolyte (the cell, the pack, salt water), ions, and say which way each one goes.
Exercises
Three levels: the bare notion, the application, the reasoning. Calculations, true-or-false and choices are checked here; for an essay, you read the answer and judge yourself.
5 exercises0 of 5
The bare notion 2 exercises
The application 2 exercises
The reasoning 1 exercises